Stockholders' Equity and Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Stockholders' Equity and Earnings Per Share [Abstract]

Schedule of earnings per share calculations

The following table presents the EPS calculations for the three and nine months ended September 30, 2018 and 2017:

($ and shares in thousands, except per share data)	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Basic
Net income	$	171,302	$	132,660	$	530,683	$	420,726
Basic weighted-average number of shares outstanding	144,921		144,498		144,829		144,412
Basic EPS	$	1.18	$	0.92	$	3.66	$	2.91
Diluted
Net income	$	171,302	$	132,660	$	530,683	$	420,726
Basic weighted-average number of shares outstanding	144,921		144,498		144,829		144,412
Diluted potential common shares (1)	1,252		1,384		1,329		1,437
Diluted weighted-average number of shares outstanding (1)	146,173		145,882		146,158		145,849
Diluted EPS	$	1.17	$	0.91	$	3.63	$	2.88

(1) Includes dilutive shares from RSUs and warrants for the three and nine months ended September 30,2018 and 2017.